Mine detail: Surprise Mine

Previously called ''

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Location

Lat / long: 45.79434, -112.09393

Resource(M)

Primary: Gold
Gangue: Hematite, Limonite, Quartz

Production

Operation type: Unknown
Deposit type: Vein
Production size: Small
Development status: Past Producer

Geology

Host rock:Lahood Formation, Sandstone And Sandy Shale
Host type:Quartzite
Structure:Belt Sandstone Trends N-S, 25 W., Fissure Zone
Alteration processes:Oxidation, Contact Metamorphism

References

MRDSD004994
DEP10101570
Reference{Deposit:: USGS BULL 574, P. 100.}{Deposit:: BERG, A.B., GEOLOGY OF THE NORTHWEST CORNER OF THE TOBACCO ROOT MOUNTAINS, MADISON CO., MT., UNIV. OF MINN., M.S. THESIS, 1959.}{Deposit:: 1914 RECON WINCHELL, A.N., U.S.G.S. BULL. 574}
ReporterLoen, Jeffrey S. (Pearson, Robert C.)